forked from gophercloud/gophercloud
-
Notifications
You must be signed in to change notification settings - Fork 0
/
results.go
73 lines (60 loc) · 1.84 KB
/
results.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
package apiversions
import (
"time"
"github.com/chjlangzi/gophercloud"
"github.com/chjlangzi/gophercloud/pagination"
)
// APIVersion represents an API version for the Shared File System service.
type APIVersion struct {
// ID is the unique identifier of the API version.
ID string `json:"id"`
// MinVersion is the minimum microversion supported.
MinVersion string `json:"min_version"`
// Status is the API versions status.
Status string `json:"status"`
// Updated is the date when the API was last updated.
Updated time.Time `json:"updated"`
// Version is the maximum microversion supported.
Version string `json:"version"`
}
// APIVersionPage is the page returned by a pager when traversing over a
// collection of API versions.
type APIVersionPage struct {
pagination.SinglePageBase
}
// IsEmpty checks whether an APIVersionPage struct is empty.
func (r APIVersionPage) IsEmpty() (bool, error) {
is, err := ExtractAPIVersions(r)
return len(is) == 0, err
}
// ExtractAPIVersions takes a collection page, extracts all of the elements,
// and returns them a slice of APIVersion structs. It is effectively a cast.
func ExtractAPIVersions(r pagination.Page) ([]APIVersion, error) {
var s struct {
Versions []APIVersion `json:"versions"`
}
err := (r.(APIVersionPage)).ExtractInto(&s)
return s.Versions, err
}
// GetResult represents the result of a get operation.
type GetResult struct {
gophercloud.Result
}
// Extract is a function that accepts a result and extracts an API version resource.
func (r GetResult) Extract() (*APIVersion, error) {
var s struct {
Versions []APIVersion `json:"versions"`
}
err := r.ExtractInto(&s)
if err != nil {
return nil, err
}
switch len(s.Versions) {
case 0:
return nil, ErrVersionNotFound{}
case 1:
return &s.Versions[0], nil
default:
return nil, ErrMultipleVersionsFound{Count: len(s.Versions)}
}
}